@charset "utf-8";
body {font-size: 0.6rem;color: #333;width: 16rem;margin: 0 auto;}
*{margin: 0;padding: 0;outline: none;}
ul {list-style: none;}
header{display: block;}
.clear{clear: both;}
a{width: 100%;height: 100%;display: block;text-decoration: none;}

.head_nav{height: 2.3rem;line-height: 2.3rem;text-align: center;background: #4ab344;color: #fff;font-size: 0.8rem;
    text-indent: -2rem;}
.back_i{background:url(../img/back.png) no-repeat 0.5rem;width: 2rem;height: 1rem;display: inline-block;float: left;margin-top: 0.65rem;background-size: 50% 90%;}